Carbureter.



E. WETT'ERHAHNQ CARBURETER. APPLICATION FILED SEPT-23:. 1914.

Patentefli 0015. 1915.

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My s mv r 0 .EDWARD WETTERHAHN, 0F GRANADA PARK, CALIFORNIA.

CARBURETER.

Specification of Letters Patent.

Patented Oct. 5, 1915.

Application riled September 23, 1914. Serial No. 863,118.

T0 (/77, whom it may concern: 1 Be it known that I, EDWARD WETTER- IIAIIN, a citizen of the United States, residing at Granada Park, in the county of Los Angeles and State of California, have invented certain new and useful Improve ments in Carbureters, of which the following is a specification.

This invention relatesqto improvements in carburetors forinternal combustion engines for burning a low grade fuel oil as well as gasolene; and the objects of my improvements are, first, to provide a double adjust- I ment for the fuel oil feeding valve, manually and automatically, by having a fiattened pin turning inside of double tubes, which are provided with holes, normally to fit above each other, but as one of the tubes may be set or adjusted manually, the holes in that adjusted tube will shift over the spaces left between the holes of the stationary tube, thus the openings for the fuel feeding may be set to suit the fuel and requirements of the engine, and besides this, the turning pin, being connected with the throttle by levers, may thus be turned inside of the inner tube, closing or opening gradually the openings of the inner tube; second, to provide an air-inlet throttle, which is connected with the gas-throttle by a spring outside of the carburetor, adapted to decrease the tension of the spring of the air-inlet throttle when opening the gas throttle, thus giving freely air by increas ing gas-feeding; and, third, to provide a priming tube to the carbureter with a hollow stem in the valve of the priming tank, adapted to allow enough fuel oil to enter the priming tube on the carburetor, and also adapted to allow the fuel oil, which thus entered the priming tube on the carburetor, to flow into the carbureter after the valve in the priming tank has been closed, thus operating the engine on this good fuel oil until the low grade fuel oil is in a condition to explode to operate the engine.

I attain these objects by the mechanism I illustrated in the accompanying drawing, in

which- Figure 1 is an assembly of my devices on a carbureter. Fig 2 is a horizontal sectional view on line aa 1n bigger scale, of my fuel 011 operating valve. Fig. 3 is a section through the spray on line b-b of Fig. 2. Fig. 4 is the same, where the spray holes are reduced appearing almost closed by turning one of the tubes. Fig. '5 is my check valve on my carburetor. Fig. 6 is my shut off valve in my primingtank. Fig. 7 is the upper end of my shut ofl' valve.

Similar figures refer to similar parts.

throughout the several views.

At a suitable distance from the top of the casing 1, see Fig. 1, is inthe'usual manper a gas throttle 2, which will be operated in the usual manner by a lever 3. Pivotally connected to throttle-lever 3, by connecting rod 4, is the fuel oil operating lever 5 on a shaft 6, which is thefuel oil controlling valve, shown in Fig. 2 in a bigger scale. One end of the fuel oil operating valve is, out down on one-side, as indicated at 7, the purpose and function of which will be later described. Spray tube 8 is slidingly fitted 1n spray adjusting tube 9, which may be set by lever 11 to give full opening ofthe spray holes 10, as indicated in Fig. 3, or spray ad usting tube 9 may be turned by lever 11 to reduce the spray holes 10 as indicated at Fig. 4. The fuel oil coming in at '12, see F ig; 1,- until the float 13 is lifted up in the usual way, closing at its highest point in the usual manner the inlet as indicated at 14. From the float chamber 15, the fuel oil will flow through the bore 16, thence through the bore 17, further, see Fig. 2, through bore 18 and then through bore 19 into the spray tube 8. The spray tube 8 may be soldered into the arm 20, which will fit on the other end over the lug 21, where it maybe held tight by the screw cap 22. After the fuel oil enters the spray tube 8, the suction of the engine will take it up through the are full opened as indicated in Fig. 3, or reduced to a small spray as indicated at Fig. 4. In either position, full opened or reduced, the outcoming spray may also be regulated .in addition to this setting of the spray adjusting tube 9, by the fuel.

oil controlling valve 6, which is operopenings 10, whether these ated by the throttle lever 3, through the I connecting rod 4, see Fig. 1. In turning the fuel oil controlling valve 6, the flat cut end, indicated at '7, see Figs. 3 and 42, will give a free passage to more or less .of the spray holes 10, thus adjusting the spray'of the fuel oil mechanically, in any of the positions set manually by the lever 11. At 22 see Fig. l, a hot air tube may be connected, which is normally shut off by the air valve 23, turning on a shaft 2e. An air valve lever 25 secured to shaft 2% may be connected by a coil spring 26 with a con necting lever 27, secured to the throttle. shaft 2, thus, when turning the throttle lever 3, decreasing the tension of the spring 26, which will allow the hotair to enter the carbiu'eter easier in proportion to the in creasing opening of the fuel oil spray 10, while, when starting the engine, the air valve 23 may be kept tight by the coil spring 26 and a little cold air may enter the carburetor at the lower end as indicated at 28, though the coil spring is not so strong to prevent an automatic movement of the air valve for the hot air to enter the carburetor after the engine may be started. by'the priming fuel oil. The connecting lever 27, secured to the shaft of the throttle 2, being shown'as turning in the-left hand direction when opening the throttle, is relieving the spring 26, connected to the lever 25 of the air valve, 28, while on the other side of the throttle 2, the'throttle lever 8 is connected by the rod 4' to the lever 5; thus, when opening and operating the carburetor by the lever 3, simultaneously opening the throttle, the spray holes and the air valve.

For starting the engine, when using a low grade fuel oil, a priming tube 29 is provided forfurnishing a good fuel oil from a priming tank 30. Secured directly on the carbureter is a check valve 31, which will not allow the 'back fire of the engine to enter the priming tube 29. The other end of the priming tube is normally shut off-from the priming tank by the valve stem 32, which is hollow see Fig. 6 and as it has a smallhole 33 on its upper end, see Fig. 7, all fuel oil having entered the priming tube 29, can be sucked by the engine, furnishing the engine with good fuel oilfor a suitable time to allow the low grade fuel oil to become explosive. The check valve, see Fig. 5, previously referred to, comprising a casing 3l, into which a spring 35 and a ball 36 may be inserted and held in this position by a tight fit bushing 37. The shut off valve for the priming tank, shown in Fig. 6, is secured on the bottom of the priming tank 30 by the lock nut The hollow stem 32 is shown in closing position. Fuel oil from the priming tank will have to go through the holes 39, which are covered by screen 40. to keep the priming 011 clean, downwardly through the means? priming tube through the holes 39, see Fig.

1 and Fig. 6, then the lever 4.2, see Fig. 7, may be turned back again, shutting off the fuel oil in the priming tank, but as the hollow stem 82 has a small opening 33 on its top end, all fuel oil in the priming tube 29 may be sucked into the engine, giving a suitable time to allow the low grade fuel oil to become explosive. The hollow stem 32 is pressed down as soon as the lever 4-2 is turned back to the position shown in Fig. 7, by the spring do, which is placed between the top of the priming tank 30 and a sleeve 46, which may be secured upon the hollow stem Having thus described my invention, 1 claim:

1. In a carbureter, a spray tube having spray holes, a float chamber communicating with the spray tube, a spray adjusting tube upon the spray tube having holes normally to fit above the spray holes of the spray tube, a lever formanually adjusting the spray through the spray holes by the spray adjusting tube, a fuel oil controlling valve having one end cut down for a fuel oil passage inside of the spray tube, a fuel oil operating lever attached to the fuel oil controlling valve, a throttle above the spray tube, a lever attached to the throttle connected by a rod with the operating lever of the fuel oil controlling valve, adapted for mechanically operating the fuel oil controlling valve with the throttle, and an air valve having a lever connected to another lever on the gas throttle shaft by a spring adapted to decrease the tension of the spring when opening the throttle.

I 2. In a carburetor, for burning a. low grade fuel oil, a spray tube having spray holes, a float chamber communicating with the spray tube, a spray adjusting tube upon the spray tube having holes normally to fit above the spray holes, of: the spray tube, a lever for manually adjusting the spray through the spray holes by the spray adjust;

ing tube, a fuel oil controlling valve having oneend cut down for a fuel oilpassage inside of the spray tube, a fuel oil operating lever attached to the'fupl oil controlling valve, a throttle'above the spray tube, a

lever attached to the throttle connected by a. rod with the operating lever of the fuel oil controlling valve, adapted for mechanically operating the fuel oil controlling valve with the throttle, another lever attached to the throttle on the other side, a spring attached low grade fuel oil in the cerbureter is getto this lever, an air valve having a lever conting warmed. 10

nected to the spring adapted to decrease the In testimony whereof I hereunto afiix my tension of the spring when opening the signature in the presence of two Witnesses.

throttle, and a priming tube having a valve EDWARD WETTERHAHN. with a hollow stem shutting of]? the priming Witnesses: oil allowing the priming oil in the priming e FRANK E. EAKER,

tube to be sucked into the engine While the OTTO H. RINEGER. 

